<template>
    <div>
        <el-upload
            class="avatar-uploader"
            action="http://127.0.0.1:8000/home/upload/"
            :show-file-list="false"
            :on-success="handleAvatarSuccess"
            :before-upload="beforeAvatarUpload">
            <img v-if="imageUrl" :src="baseUrl+imageUrl" class="avatar">
            <i v-else class="el-icon-plus avatar-uploader-icon"></i>
        </el-upload>
    </div>
</template>
<script>
export default {
    data(){
        return {
            baseUrl: 'http://127.0.0.1:8000/user',
            imageUrl: ""
        }
    },
    methods:{
      handleAvatarSuccess(res, file) {
        this.imageUrl = res.url;
      },
      beforeAvatarUpload(file) {
        console.log(file)
        const isJPG = file.type === 'image/jpeg' || file.type === 'image/png';
        const isLt2M = file.size / 1024 / 1024 < 3;

        if (!isJPG) {
          this.$message.error('上传头像图片只能是 JPG 格式!');
        }
        if (!isLt2M) {
          this.$message.error('上传头像图片大小不能超过 2MB!');
        }
        return isJPG && isLt2M;
      }
    }
}
</script>
<style>
  .avatar-uploader .el-upload {
    border: 1px dashed #d9d9d9;
    border-radius: 6px;
    cursor: pointer;
    position: relative;
    overflow: hidden;
  }
  .avatar-uploader .el-upload:hover {
    border-color: #409EFF;
  }
  .avatar-uploader-icon {
    font-size: 28px;
    color: #8c939d;
    width: 178px;
    height: 178px;
    line-height: 178px;
    text-align: center;
  }
  .avatar {
    width: 178px;
    height: 178px;
    display: block;
  }
</style>